The Proline Promag 55s is an electromagnetic flow measuring system designed for accurate bidirectional flow rate measurement of liquids with a minimum conductivity of ≥5 μs/cm, suitable for various inhomogeneous and abrasive fluids. It can measure flow rates up to 9600 m³/h, with installation flexibility in either compact or remote configurations, offering features such as advanced diagnostics and customizable software options. Its robust design ensures high accuracy, repeatability, and operational safety, making it ideal for diverse industrial applications.

1. TI071D/06/en/10.09
71104953
Technical Information
Proline Promag 55S
Electromagnetic Flow Measuring System
Flow rate measurement of liquids with solids content or
inhomogeneous liquids
Application
Electromagnetic flowmeter for bidirectional meas-
urement of liquids with a minimum conductivity
of ≥ 5 μS/cm – in particular fluids with solids, and fluids
which are abrasive, inhomogeneous or tend to build-up,
for example:
• Chemical/mechanical pulps, paper pulp or wood pulp
with solids contents up to 15 Vol.-%
• Fruit mashes, fruit concentrates and final products
(salad dressings, soups with vegetable pieces)
• Slurries containing high amounts of sand or stone with
an abrasive effect, e.g. ore slurry or mortar
• Chemically inhomogeneous fluids (e.g. additives)
• Thick wastewater sludges
• Flow measurement up to 9600 m3
/h
(42267 gal/min)
• Can be used up to +180 °C (+356 °F) and
max. 40 bar (580 psi)
• Fitting lengths as per DVGW/ISO
Application-specific linings and electrodes:
• Natural rubber, hard rubber, polyurethane, PTFE or
PFA linings
• Flat, bullet nose, neck, bow or brush electrodes
Approvals for hazardous area:
• ATEX, FM, CSA
Connection to process control system:
• HART, PROFIBUS PA, FOUNDATION Fieldbus
Your benefits
Promag measuring devices offer you cost-effective flow
measurement with a high degree of accuracy for a wide
range of process conditions.
The Proline transmitter concept comprises of:
• High degree of efficiency due to the modular device
and operating concept
• Software options for: electrode cleaning, advanced
diagnostics, calculation of mass flow and solids content
The robust Promag S sensors offer:
• Universal devices, even for difficult fluids
• Excellent accuracy and repeatability
• High resistance to abrasion thanks to industry-
optimized linings and measuring electrodes
• Optimum operational safety due to advanced,
permanent self-diagnosis
• Simple installation and commissioning
• Insensitive to vibration
• No pressure loss

2. Proline Promag 55S
2 Endress+Hauser
Table of contents
Function and system design. . . . . . . . . . . . . . . . . . . . . 3
Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operable flow range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Input signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Low flow cut off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Galvanic isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Switching output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical connection measuring unit . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical connection terminal assignment . . . . . . . . . . . . . . . . . . . 7
Electrical connection remote version . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Cable entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Cable specifications (remote version) . . . . . . . . . . . . . . . . . . . . . . 8
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power supply failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Potential equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Performance characteristics. . . . . . . . . . . . . . . . . . . . 12
Reference conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Maximum measured error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operating conditions: Installation . . . . . . . . . . . . . . . 13
Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operating conditions: Environment. . . . . . . . . . . . . . 19
Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Shock and vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Electromagnetic compatibility (EMC) . . . . . . . . . . . . . . . . . . . . . 19
Operating conditions: Process . . . . . . . . . . . . . . . . . . 20
Medium temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Limiting medium pressure range (nominal pressure) . . . . . . . . . . 21
Pressure tightness (lining) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Nominal diameter and flow rate . . . . . . . . . . . . . . . . . . . . . . . . . 23
Pressure loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Measuring tube specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Mechanical construction . . . . . . . . . . . . . . . . . . . . . . 28
Design, dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Material load diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Fitted electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Process connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Surface roughness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Human interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Display elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Language groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Language groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Certificates and approvals . . . . . . . . . . . . . . . . . . . . . 44
CE mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
C-tick mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Ex certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Sanitary compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Pressure measuring device approval . . . . . . . . . . . . . . . . . . . . . . 44
FOUNDATION Fieldbus certification . . . . . . . . . . . . . . . . . . . . . 44
PROFIBUS PA certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Other standards, guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Supplementary documentation . . . . . . . . . . . . . . . . . 45
Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . 45
Registered trademarks. . . . . . . . . . . . . . . . . . . . . . . . 46

3. Proline Promag 55S
Endress+Hauser 3
Function and system design
Measuring principle Faraday’s law of induction states that a voltage is induced in a conductor moving in a magnetic field.
In electromagnetic measuring, the flowing medium corresponds to the moving conductor. The induced voltage
is proportional to the flow velocity and is detected by two measuring electrodes and transmitted to the ampli-
fier. Flow volume is computed on the basis of the pipe’s diameter. The constant magnetic field is generated by
a switched direct current of alternating polarity.
A0003191
Ue = B · L · v
Q = A · v
Ue induced voltage
B magnetic induction (magnetic field)
L electrode gap
v flow velocity
Q volume flow
A pipe cross-section
I current strength
Measuring system The flow measuring system consists of the following components:
• Promag 55 transmitter
• Promag S sensor (DN 15 to 600 / ½ to 24")
Two versions are available:
• Compact version: Transmitter and sensor form a single mechanical unit.
• Remote version: Transmitter and sensor are installed separately.
Measurement of solids flow rates
In combination with a density meter, e.g. with "Gammapilot M" from Endress+Hauser, Promag 55S also
determines the throughput of solids in mass, volume or percentage rates.
The following order specifications are required for this: order option for software function "Solids content flow"
(F-CHIP) and order option for a current input.
A0006118
Solids content flow measurement (m) with the aid of a density and flow measuring device. If the solid density (ρS) and the
density of the carrier liquid (ρC ) are also known, they can be used to calculate the solids flow.
1 Flow measuring device (Promag 55S) → volume flow (V). The solid density (ρS) and the density of the transport
liquid (ρC ) must be entered in the transmitter.
2 Density measuring device (e.g. "Gammapilot M") → total fluid density (ρM ) (transport liquid and solids)
Ue
I
I
B
L
V
rC
rS
1
2
rM
m
V

4. Proline Promag 55S
4 Endress+Hauser
Input
Measured variable • Flow rate (proportional to induced voltage)
• Conductivity (without temperature compensation)
Measuring range • Flow rate: Typical v = 0.01 to 10 m/s (0.03 to 33 ft/s) with the specified measuring accuracy
• Conductivity s = 5 to 2000 μ/cm
not for sensors without reference electrode (Promag S with brush electrodes)
Operable flow range Over 1000 : 1
Input signal Status input (auxiliary input):
U = 3 to 30 V DC, Ri = 5 kΩ, galvanically isolated
Configurable for: totalizer(s) reset, positive zero return, error-message reset
Current input:
active/passive selectable, galvanically isolated, full scale value adjustable, resolution: 3 μA,
temperature coefficient: typically 0.005% o.f.s./°C (0.003% o.f.s./°F)
• active: 4 to 20 mA, Ri ≤ 150 Ω, Uout = 24 V DC, short-circuit proof
• passive: 0/4 to 20 mA, Ri ≤ 150 Ω, Umax = 30 V DC
Output
Output signal Current output:
active/passive selectable, galvanically isolated, time constant selectable (0.01 to 100 s),
full scale value adjustable, temperature coefficient: typically 0.005% o.f.s./°C (0.003 % o.f.s./°F),
resolution: 0.5 μA
• active: 0/4 to 20 mA, RL < 700 Ω (for HART: RL ≥ 250 Ω)
• passive: 4 to 20 mA; supply voltage VS: 18 to 30 V DC; Ri ≥ 150 Ω
Pulse/frequency output:
active/passive selectable (Ex i version passive only), galvanically isolated
• active: 24 V DC, 25 mA (max. 250 mA over 20 ms), RL > 100 Ω
• passive: open collector, 30 V DC, 250 mA
• Frequency output: end frequency 2 to 10000 Hz (fmax = 12500 Hz), on/off ratio 1:1, pulse width max. 10 s
• Pulse output: pulse value and pulse polarity selectable, pulse width configurable (0.05 to 2000 ms)
PROFIBUS PA interface:
• Transmission technology (Physical Layer): IEC 61158-2 (MBP), galvanically isolated
• Profile version 3.0
• Current consumption: 11 mA
• Permissible supply voltage: 9 to 32 V
• Bus connection with integrated reverse polarity protection
• Error current FDE (Fault Disconnection Electronic): 0 mA
• Function blocks: 2 × analog input, 3 × totalizer
• Output data: volume flow, calculated mass flow, totalizer 1 to 3
• Input data: positive zero return (ON/OFF), totalizer control, value for local display
• Cyclic data transmission compatible with previous model Promag 35S
• Bus address adjustable via miniature switches or local display (optional) at the measuring device

5. Proline Promag 55S
Endress+Hauser 5
FOUNDATION Fieldbus interface:
• FOUNDATION Fieldbus H1
• Transmission technology (Physical Layer): IEC 61158-2 (MBP), galvanically isolated
• ITK version 5.0
• Current consumption: 12 mA
• Inrush current: < 12 mA
• Error current FDE (Fault Disconnection Electronic): 0 mA
• Permissible supply voltage: 9 to 32 V
• Bus connection with integrated reverse polarity protection
• Function blocks:
– 5 × Analog Input (execution time: 18 ms each)
– 1 × PID (25 ms)
– 1 × Digital Output (18 ms)
– 1 × Signal Characterizer (20 ms)
– 1 × Input Selector (20 ms)
– 1 × Arithmetic (20 ms)
– 1 × Integrator (18 ms)
• Total VCRs: 48
• Total link objects in VFD: 40
• Output data: volume flow, calculated mass flow, temperature, totalizer 1 to 3
• Input data: positive zero return (ON/OFF), reset totalizer
• Link Master (LM) functionality is supported
Signal on alarm Current output:
Failsafe mode selectable (e.g. according to NAMUR recommendation NE 43)
Pulse/frequency output:
Failsafe mode selectable
Relay output:
"de-energized" in the event of a fault or power supply failure
Load See "output signal"
Low flow cut off Switch points for low flow cut off freely selectable.
Galvanic isolation All circuits for inputs, outputs, and power supply are galvanically isolated from each other.
Switching output Relay output:
Normally closed (NC or break) or normally open (NO or make) contacts available
(default: relay 1 = NO, relay 2 = NC),
max. 30 V / 0.5 A AC; 60 V / 0.1 A DC, galvanically isolated.
Configurable for: error messages, empty pipe detection (EPD), direction of flow, limit values.

6. Proline Promag 55S
6 Endress+Hauser
Power supply
Electrical connection
measuring unit
A0006187
Connecting the transmitter, cable cross-section max. 2.5 mm2
(14 AWG)
A View A (field housing)
B View B (wall-mount housing)
*) Fixed communication boards
a Connection compartment cover
b Cable for power supply: 20 to 260 V AC / 20 to 64 V DC
- Terminal No. 1: L1 for AC, L+ for DC
- Terminal No. 2: N for AC, L– for DC
c Ground terminal for protective conductor
d Signal cable: see "Electrical connection terminal assignment"
Fieldbus cable:
- Terminal No. 26: PA + / FF + (with polarity protection)
- Terminal No. 27: PA – / FF – (with polarity protection)
e Ground terminal for signal cable shield / Fieldbus cable
f Service adapter for connecting service interface FXA193 (Fieldcheck, FieldCare)
a
a
HART
27
25
23
21
2
1
26
24
22
20
L1 (L+)
N (L-)
–
–
–
+
+
+
PROFIBUS PA*
FOUNDATION Fieldbus*
PA – / FF –
PA + / FF +
d
c
e
b
– 27
– 25
– 23
– 21
+ 26
+ 24
+ 22
+ 20
N (L-) 2
L1 (L+)1
A B
d
b
d
c
e
b
(d)b d
f f

7. Proline Promag 55S
Endress+Hauser 7
Electrical connection
terminal assignment
Electrical connection
remote version
A0011722
Connecting the remote version
a Connection compartment, wall-mount housing
b Cover of connection housing, sensor
c Signal cable
d Coil current cable
n.c. unconnected, insulated cable shields
Terminal no. and cable colors: 6/5 = brown; 7/8 = white; 4 = green; 36/37 = yellow
Order version
Terminal No. (inputs / outputs
20 (+) / 21 (–) 22 (+) / 23 (–) 24 (+) / 25 (–) 26 (+) / 27 (–)
Fixed communication boards (fixed assignment)
55***-***********A - - Frequency output
Current output
HART
55***-***********B Relay output 2 Relay output 1 Frequency output
Current output
HART
55***-***********H
PROFIBUS PA
55***-***********K
FOUNDATION
Fieldbus
Flexible communication boards
55***-***********C Relay output 2 Relay output 1 Frequency output
Current output
HART
55***-***********D Status input Relay output Frequency output
Current output
HART
55***-***********L Status input Relay output 2 Relay output 1
Current output
HART
55***-***********M Status input Frequency output 2 Frequency output 1
Current output
HART
55***-***********2 Relay output Current output 2 Frequency output
Current output 1
HART
55***-***********3
Current input
Current output 2 Frequency output
Current output 1
HART
55***-***********4 Current input Relay output Frequency output Current output
HART
55***-***********5 Status input Current input Frequency output Current output
HART
E1
E2
GND
E
S1
E1
E2
S2
GND
E
S
5 7 4 37 42 41
42 416 5 7 8 4 37 36
2 1n.c. n.c.
dc
c d
a
b
n.c.

8. Proline Promag 55S
8 Endress+Hauser
Electrical connections 20 to 260 V AC, 45 to 65 Hz
20 to 64 V DC
Cable entries Power-supply and signal cables (inputs/outputs):
• Cable gland M20 × 1.5 (8 to 12 mm / 0.31 to 0.47")
• Cable entries for thread ½" NPT, G ½"
Fieldbus cable:
• Fieldbus connector for PROFIBUS PA, M12 × 1 / PG 13.5 plus adapter PG 13.5 / M20.5
• Fieldbus connector for FOUNDATION Fieldbus, 7/8-16 UNC × M20
Connecting cable for remote version:
• Cable gland M20 × 1.5 (8 to 12 mm / 0.31 to 0.47")
• Cable entries for thread ½" NPT, G ½"
Cable specifications
(remote version)
Coil cable
• 2 × 0.75 mm2
(18 AWG) PVC cable with common, braided copper shield (∅ ∼ 7 mm / 0.28")
• Conductor resistance: ≤37 Ω/km (≤0.011 Ω/ft)
• Capacitance: core/core, shield grounded: ≤120 pF/m (≤37 pF/ft)
• Operating temperature:
– Cable not permanently routed: –20 to +80 °C (–4 to +176 °F)
– Cable permanently routed: –40 to +80 °C (–40 to +176 °F)
• Cable cross-section: max. 2.5 mm2
(14 AWG)
Signal cable
• 3 × 0.38 mm2
(20 AWG) PVC cable with common, braided copper shield (∅ ∼ 7 mm / 0.28") and indivi-
dually shielded cores
• With Empty Pipe Detection (EPD): 4 × 0.38 mm2
(20 AWG) PVC cable with common, braided copper shield
(∅ ∼ 7 mm / 0.28") and individually shielded cores
• Conductor resistance: ≤ 50 Ω/km (≤ 0.015 Ω/ft)
• Capacitance: core/shield: ≤ 420 pF/m (≤ 128 pF/ft)
• Operating temperature:
– Cable not permanently routed: –20 to +80 °C (–4 to +176 °F)
– Cable permanently routed: –40 to +80 °C (–40 to +176 °F)
• Cable cross-section: max. 2.5 mm2
(14 AWG)
A0003194
a Signal cable
b Coil current cable
1 Core
2 Core insulation
3 Core shield
4 Core jacket
5 Core reinforcement
6 Cable shield
7 Outer jacket
As an option, Endress+Hauser can also deliver reinforced connecting cables with an additional, reinforcing
metal braid. We recommend such cables for the following cases:
• Directly buried cable
• Cables endangered by rodents
• Device operation which should comply with the IP 68 (NEMA 6P) standard of protection
1
2
3
4
5
6
7
a b

9. Proline Promag 55S
Endress+Hauser 9
Operation in zones of severe electrical interference
The measuring device complies with the general safety requirements in accordance with EN 61010-1,
the EMC requirements of IEC/EN 61326 and NAMUR recommendation NE 21.
" Caution!
Grounding of the shield is by means of the ground terminals provided for the purpose inside the connection
housing. Keep the stripped and twisted lengths of cable shield to the terminals as short as possible.
Power consumption AC: < 45 VA at 260 V AC; < 32 VA at 110 V AC (incl. sensor)
DC: < 19 W (including sensor)
Switch-on current:
• max. 2.00 A (< 700 ms) at 20 V AC
• max. 2.28 A (< 5 ms) at 110 V AC
• max. 5.5 A (< 5 ms) at 260 V AC
Power supply failure Lasting min. 1 power cycle:
• EEPROM or HistoROM/T-DAT saves measuring system data if power supply fails
• HistoROM/S-DAT: exchangeable data storage device which stores sensor characteristic data (nominal
diameter, serial number, calibration factor, zero point etc.)
Potential equalization Standard case
Perfect measurement is only ensured when the medium and the sensor have the same electrical potential. Most
Promag sensors have a reference electrode installed as standard, which guarantees the required potential equa-
lization. This usually means that additional potential equalization measures are unnecessary.
Promag S:
• Reference electrode is standard for electrode materials 1.4435/316L, Alloy C-22, tantalum, titanium Gr. 2,
Duplex 1.4462, tungsten carbide coating (for electrodes made of 1.4435)
• Reference electrode is optional for electrode material platinum
• Reference electrode not present in measuring tubes with a natural rubber lining in conjunction with brush
electrodes
! Note!
For installation in metal pipes, it is advisable to connect the ground terminal of the transmitter housing to the
piping. Also, observe company-internal grounding guidelines.
A0004375
Potential equalization by means of the transmitter's ground terminal
" Caution!
• For sensors without reference electrodes or without metal process connections, carry out potential
equalization as per the instructions for special cases described below. These special measures are particularly
important when standard grounding practice cannot be ensured or extremely strong matching currents are
expected.
• Sensors with brush electrodes do not have a reference electrode. For this reason, ground disks must be
installed if necessary to ensure sufficient potential equalization to the fluid. This applies in particular to
isolating lined pipes which are not grounded → ä 10.

10. Proline Promag 55S
10 Endress+Hauser
Special cases
Metal, ungrounded piping
In order to prevent outside influences on measurement, it is necessary to use ground cables to connect each
sensor flange to its corresponding pipe flange and ground the flanges. Connect the transmitter or sensor con-
nection housing, as applicable, to ground potential by means of the ground terminal provided for the purpose
(see diagram).
The ground cable for flange-to-flange connections can be ordered separately as an accessory from
Endress+Hauser → ä 45.
• DN ≤ 300 (12"): The ground cable is in direct connection with the conductive flange coating and is secured
by the flange screws (A).
• DN ≥ 350 (14"): The ground cable connects directly to the metal transport bracket (B).
" Caution!
Also, observe company-internal grounding guidelines.
A0004376
Potential equalization with equalizing currents in ungrounded, metal pipes
(ground cable: copper wire, at least 6 mm2 /10 AWG)
A Installing ground cable at DN ≤ 300 (12")
B Installing ground cable at DN ≥ 350 (14")
Pre-installed ground cable for DN ≤ 300 (12") (order option)
Ground cables which are preinstalled on the sensor flange, are also available. These ground cables can be
mounted and connected electrically to the piping in different ways:
• Using a screw on the side of the pipe flange (a)
• Using the flange screws (b)
• Using a pipe clip installed around the pipe (c)
A006117
Possibilities for connecting and mounting pre-installed ground cables
(ground cable: copper wire at least 6 mm2
/10 AWG)
A B
a
b
c

11. Proline Promag 55S
Endress+Hauser 11
Plastic pipes and isolating lined pipes
Normally, potential is matched using the reference electrodes in the measuring tube. However, in exceptional
cases it is possible that, due to the grounding plan of a system, matching currents flow over the reference elec-
trodes. This can lead to destruction of the sensor, e.g. through electro-chemical decomposition of the electro-
des. In such cases, e.g. for fiberglass or PVC pipings, it is therefore essential that you use additional ground
disks for potential equalization. This applies also to two-phase or two-component flow, where the fluid is not
well mixed or its constituents are not mixable.
" Caution!
• Risk of damage by electrochemical corrosion. Note the electrochemical insulation rating, if the ground disks
and measuring electrodes are made of different materials.
• Also, observe company-internal grounding guidelines.
A0004377
Potential equalization/ground disks in the case of plastic pipes or isolating lined pipes
(ground cable: copper wire at least 6 mm2 / 10 AWG)
Plastic pipes and isolating lined pipes
In such cases, install the measuring instrument without potential in the piping:
• When installing the measuring device, make sure that there is an electrical connection between the two
piping runs (copper wire, at least 6 mm2
/ 10 AWG).
• When using ground disks in plastic or isolating lined pipes, ensure that they are electrically connected with
each other (copper wire at least 6 mm2
/ 10 AWG).
• Make sure that the mounting material used does not establish a conductive connection between the pipe
and the measuring device and that the mounting material withstands the torques applied when the threaded
fasteners are tightened during installation.
• Check the galvanic isolation using an insulation tester (protection against contact).
• Also comply with the regulations applicable to potential-free installation.
! Note!
For the remote version, both the sensor and the transmitter must be installed so that they are potential-free.
A0004378
Potential equalization and cathodic protection (connecting cable: copper wire at least 6 mm2
/ 10 AWG)
1 Isolation transformer power supply
2 Electrically insulated
1
2 2

12. Proline Promag 55S
12 Endress+Hauser
Performance characteristics
Reference conditions To DIN EN 29104 and VDI/VDE 2641:
• Fluid temperature: +28 °C ± 2 K (+82 °F ± 2 K)
• Ambient temperature: +22 °C ± 2 K (+72 °F ± 2 K)
• Warm-up time: 30 minutes
Installation:
• Inlet run > 10 × DN
• Outlet run > 5 × DN
• Sensor and transmitter grounded.
• Sensor centered relative to the pipe.
Maximum measured error Pulse output:
• Standard: ±0.2% o.r. ± 2 mm/s (±0.2% o.r. ± 0.08 in/s)
• With brush electrodes (Option): ±0.5% o.r. ± 2 mm/s (±0.5% o.r. ± 0.08 in/s)
(o.r. = of reading)
Current output:
in addition typically ±5 μA
! Note!
Supply-voltage fluctuations have no effect within the specified range.
A0004456
Max. measured error in % of reading
Conductivity
• Max. measuring error not specified
• Without temperature compensation (cell constant is a factory setting)
Repeatability Volume flow
• Standard: max. ±0.1% o.r. ± 0.5 mm/s (±0.1% o.r. ± 0.02 in/s)
• With brush electrodes (Option): max. ±0.2% o.r. ± 0.5 mm/s (±0.2% o.r. ± 0.02 in/s)
(o.r. = of reading)
Conductivity
• Max. ±5% o.r.
(o.r. = of reading)
0 1
2.5
[%]
2.0
1.5
1.0
0.5
0
2 4 6 8 10 [m/s]
v
5 10 15 20 25 30 32 [ft]0

13. Proline Promag 55S
Endress+Hauser 13
Operating conditions: Installation
Installation instructions Location
The accumulation of air or gas bubbles in the measuring tube could result in an increase in measuring errors.
Avoid the following locations:
• At the highest point of a pipeline. Risk of air accumulating.
• Directly upstream from a free pipe outlet in a vertical pipeline.
A0003202
Installing pumps
Do not install the sensor on the intake side of a pump. This precaution is to avoid low pressure and the conse-
quent risk of damage to the lining of the measuring tube. Information on the lining's resistance to partial
vacuum → ä 21.
It might be necessary to install pulse dampers in systems incorporating reciprocating, diaphragm or peristaltic
pumps. Information on the measuring system's resistance to vibration and shock → ä 19.
A0003203
h 2 x DN³

14. Proline Promag 55S
14 Endress+Hauser
Partially filled pipes
Partially filled pipes with gradients necessitate a drain-type configuration. The Empty Pipe Detection function
offers additional protection by detecting empty or partially filled pipes.
" Caution!
Risk of solids accumulating. Do not install the sensor at the lowest point in the drain. It is advisable to install a
cleaning valve.
A0003204
Down pipes
Install a siphon or a vent valve downstream of the sensor in down pipes h ≥ 5 m (16,4 ft). This precaution is
to avoid low pressure and the consequent risk of damage to the lining of the measuring tube. This measure also
prevents the system losing prime, which could cause air inclusions.
Information on the lining's resistance to partial vacuum → ä 21.
A0008157
Measures for installation in a down pipe
1 Vent valve
2 Siphon
h Vertical height of the down pipe regarding the sensor
³ 5 x DN
³ 2 x DN
h
2
1

15. Proline Promag 55S
Endress+Hauser 15
Orientation
An optimum orientation position helps avoid gas and air accumulations and deposits in the measuring tube.
Promag, nevertheless, supplies a range of functions and accessories for correct measuring of problematic fluids:
• Electrode Cleaning Circuit (ECC) for applications with fluids producing build-up, e.g. electrically conductive
deposits → "Description of Device Functions" manual.
• Empty Pipe Detection (EPD) ensures the detection of partially filled measuring tubes, e.g. in the case of
degassing fluids.
Vertical orientation
A vertical orientation is ideal in the following cases:
• For self-emptying piping systems and when using empty pipe detection.
• For sludge containing sand or stones and where the solids cause sedimentation.
A0008158
Horizontal orientation
The measuring electrode plane should be horizontal. This prevents brief insulation of the two electrodes by
entrained air bubbles.
" Caution!
Empty Pipe Detection functions correctly with the measuring device installed horizontally only when the
transmitter housing is facing upward (see diagram). Otherwise there is no guarantee that Empty Pipe Detection
will respond if the measuring tube is only partially filled or empty.
A0003207
1 EPD electrode for empty pipe detection (not available for "measuring electrode only" option)
2 Measuring electrodes for signal detection
3 Reference electrode for potential equalization (not available for "measuring electrode only" option)
A
1
2 2
A
3

16. Proline Promag 55S
16 Endress+Hauser
Vibrations
Secure and fix both the piping and the sensor if the vibrations are severe.
" Caution!
It is advisable to install sensor and transmitter separately if vibration is excessively severe. Information on the
permitted resistance to vibration and shock → ä 19.
A0003208
Measures to prevent vibration of the measuring device (L > 10 m / 33 ft)
Foundations, supports
If the nominal diameter is DN ≥ 350 (14"), mount the sensor on a foundation of adequate load-bearing
strength.
" Caution!
Risk of damage.
Do not support the weight of the sensor on the metal casing: the casing would buckle and damage the internal
magnetic coils.
A0003209
Correct support for large nominal diameters (DN ≥ 350 / 14")
L

17. Proline Promag 55S
Endress+Hauser 17
Adapters
Suitable adapters to DIN EN 545 (double-flange reducers) can be used to install the sensor in larger-diameter
pipes. The resultant increase in the rate of flow improves measuring accuracy with very slow-moving fluids.
The nomogram shown here can be used to calculate the pressure loss caused by cross-section reduction.
! Note!
The nomogram applies to fluids of viscosity similar to water.
1. Calculate the ratio of the diameters d/D.
2. From the nomogram, read off the pressure loss as a function of fluid velocity (downstream from the
reduction) and the d/D ratio.
A0003213
Pressure loss due to adapters (for pressure losses in US units, please contact Endress+Hauser)
Inlet and outlet runs
If possible, install the sensor well clear of fittings such as valves, T-pieces, elbows etc.
Compliance with the following requirements for the inlet and outlet runs is necessary in order to ensure meas-
uring accuracy.
• Inlet run ≥ 5 × DN
• Outlet run ≥ 2 × DN
A0003210
100
10
0.5d / D
[mbar]
0.6 0.7 0.8 0.9
1 m/s
2 m/s
3 m/s
4 m/s
5 m/s
6 m/s
7 m/s
8 m/s
1
Dd
max. 8°
5 x DN³ ³ 2 x DN

18. Proline Promag 55S
18 Endress+Hauser
Length of connecting cable
In order to ensure measuring accuracy, comply with the following instructions when installing the remote
version:
• Secure the cable run or route the cable in an armored conduit. Movement of the cable can falsify the meas-
uring signal, particularly if the fluid conductivity is low.
• Route the cable well clear of electrical machines and switching elements.
• Ensure potential equalization between sensor and transmitter, if necessary.
• The permissible cable length Lmax depends on the fluid conductivity (see Figure).
A0006116
Permitted lengths for connecting cable in remote version, as a function of the conductivity of the fluid
Gray shaded area = permissible area
Lmax = Length of connecting cable
[μS/cm]
50
40
30
20
10
5
0
100 20 30 40 50
[m]
L max
L max
50 100 1500
[ft]

19. Proline Promag 55S
Endress+Hauser 19
Operating conditions: Environment
Ambient temperature Transmitter:
• Standard:
– Compact version: –20 to +50 °C (–4 to +122 °F)
– Remote version: –20 to +60 °C (–4 to +140 °F)
• Optional:
– Compact version: –40 to +50 °C (–40 to +122 °F)
– Remote version: –40 to +60 °C (–40 to +140 °F)
! Note!
At ambient temperatures below –20 °C (–4 °F), the readability of the display may be impaired.
Sensor:
• Flange material carbon steel: –10 to +60 °C (+14 to +140 °F)
• Flange material stainless steel: –40 to +60 °C (–40 to +140 °F)
" Caution!
Do not exceed the min. and max. temperatures for the lining of the measuring tube (→ "Medium temperature
range").
Note the following points:
• Install the device at a shady location. Avoid direct sunlight, particularly in warm climatic regions.
• If both fluid and ambient temperatures are high, install the transmitter at a remote location from the sensor
(→ "Medium temperature range").
Storage temperature The storage temperature corresponds to the operating temperature range of the transmitter and sensor.
Degree of protection • Standard: IP 67 (NEMA 4X) for transmitter and sensor
• Optional: IP 68 (NEMA 6P) for remote version of Promag S sensor
Shock and vibration resistance Acceleration up to 2 g by analogy with IEC 600 68-2-6
(High temperature version: no data available)
Electromagnetic compatibility
(EMC)
According to IEC/EN 61326 and NAMUR recommendation NE 21

20. Proline Promag 55S
20 Endress+Hauser
Operating conditions: Process
Medium temperature range The permitted temperature depends on the lining of the measuring tube:
• 0 to +60 °C (+32 to +140 °F) for natural rubber (DN 65 to 600 / 2½ to 24")
• 0 to +80 °C (+32 to +176 °F) for hard rubber (DN 65 to 600 / 2½ to 24")
• –20 to +50 °C (–4 to +122 °F) for polyurethane (DN 25 to 600 / 1 to 24")
• –20 to +180 °C (–4 to +356 °F) for PFA (DN 25 to 200 / 1 to 8"), restrictions → see diagrams
• –40 to +130 °C (–40 to +266 °F) for PTFE (DN 15 to 600 / ½ to 24"), restrictions → see diagrams
A0006119
Promag S compact versions (with PFA or PTFE lining)
TA Ambient temperature
TF Fluid temperature
HT High temperature version with insulation
➀ Gray shaded area → temperature range from –10 to –40 °C (–14 to –40 °F) applies only to stainless steel flanges
A0002671
Promag S remote versions (with PFA or PTFE lining)
TA Ambient temperature
TF Fluid temperature
HT High temperature version with insulation
➀ Gray shaded area → temperature range from –10 to –40 °C (–14 to –40 °F) applies only to stainless steel flanges
PTFE
HT
m
PFA
n
0
0
0
0
-20-40
-40
20
20
40
100
60140
[°F] [°C]TA
40 60 80
TF
100
100
120 140 160
200 300
180 [°C]
360 [°F]
-20
-40-40
HT
PTFE
m
n
PFA
0
0
0
0
-20-40
-40
20
20
40
100
60140
[°F] [°C]TA
40 60 80
TF
100
100
120 140 160
200 300
180 [°C]
360 [°F]
-20
-40-40

21. Proline Promag 55S
Endress+Hauser 21
Conductivity Minimum conductivity:
• ≥ 5 μS/cm for all liquids (incl. demineralized water)
! Note!
In the remote version, the required minimum conductivity is also influenced by the length of the cable
→ ä 18.
Limiting medium pressure
range (nominal pressure)
• EN 1092-1 (DIN 2501): PN 10 (DN 200 to 600 / 8 to 24"), PN 16 (DN 65 to 600 / 2½ to 24"),
PN 25 (DN 200 to 600 / 8 to 24"), PN 40 (DN 15 to 150 / ½ to 6")
• ANSI B16.5: Class 150 (DN ½ to 24"), Class 300 (DN ½ to 6")
• JIS B2220: 10K (DN 50 to 300 / 2 to 12"), 20K (DN 15 to 300 / ½ to 12")
• AS 2129: Table E (DN 25 / 1", DN 50 / 2")
• AS 4087: Cl. 14 (DN 50 / 2")
Pressure tightness (lining) Pressure tightness in SI units [mbar]
Promag S
Nominal
diameter
Measuring tube
lining
Resistance of measuring tube lining to partial vacuum (SI units)
Limit values for abs. pressure [mbar] at various fluid temperatures
[mm] 25 °C 50 °C 80 °C 100 °C 130 °C 150 °C 180 °C
25 to 600 Polyurethane 0 0 - - - - -
65 to 600 Natural rubber 0 0 - - - - -
65 to 600 Hard rubber 0 0 0 - - - -
Promag S
Nominal
diameter
Measuring tube
lining
Resistance of measuring tube lining to partial vacuum (SI units)
Limit values for abs. pressure [mbar] at various fluid temperatures
[mm] 25 °C 80 °C 100 °C 130 °C 150 °C 180 °C
15 PTFE 0 0 0 100 – –
25 PTFE / PFA 0/0 0/0 0/0 100/0 –/0 –/0
32 PTFE / PFA 0/0 0/0 0/0 100/0 –/0 –/0
40 PTFE / PFA 0/0 0/0 0/0 100/0 –/0 –/0
50 PTFE / PFA 0/0 0/0 0/0 100/0 –/0 –/0
65 PTFE / PFA 0/0 * 40/0 130/0 –/0 –/0
80 PTFE / PFA 0/0 * 40/0 130/0 –/0 –/0
100 PTFE / PFA 0/0 * 135/0 170/0 –/0 –/0
125 PTFE / PFA 135/0 * 240/0 385/0 –/0 –/0
150 PTFE / PFA 135/0 * 240/0 385/0 –/0 –/0
200 PTFE / PFA 200/0 * 290/0 410/0 –/0 –/0
250 PTFE 330 * 400 530 – –
300 PTFE 400 * 500 630 – –
350 PTFE 470 * 600 730 – –
400 PTFE 540 * 670 800 – –
450 PTFE
Partial vacuum is impermissible!500 PTFE
600 PTFE
* No value can be quoted.

22. Proline Promag 55S
22 Endress+Hauser
Pressure tightness in US units [psi = pounds/inch2]
Promag S
Nominal
diameter
Measuring tube
lining
Resistance of measuring tube lining to partial vacuum (US units)
Limit values for abs. pressure [psi] at various fluid temperatures
[inch] 77 °F 122 °F 176 °F 212 °F 266 °F 302 °F 356 °F
1 to 24" Polyurethane 0 0 - - - - -
3 to 24" Natural rubber 0 0 - - - - -
3 to 24" Hard rubber 0 0 0 - - - -
Promag S
Nominal
diameter
Measuring tube
lining
Resistance of measuring tube lining to partial vacuum (US units)
Limit values for abs. pressure [psi] at various fluid temperatures
[inch] 77 °F 176 °F 212 °F 266 °F 302 °F 356 °F
½" PTFE 0 0 0 1.5 – –
1" PTFE / PFA 0/0 0/0 0/0 1.5/0 –/0 –/0
– PTFE / PFA 0/0 0/0 0/0 1.5/0 –/0 –/0
1½" PTFE / PFA 0/0 0/0 0/0 1.5/0 –/0 –/0
2" PTFE / PFA 0/0 0/0 0/0 1.5/0 –/0 –/0
– PTFE / PFA 0/0 * 0.6/0 1.9/0 –/0 –/0
3" PTFE / PFA 0/0 * 0.6/0 1.9/0 –/0 –/0
4" PTFE / PFA 0/0 * 2.0/0 2.5/0 –/0 –/0
– PTFE / PFA 2.0/0 * 3.5/0 5.6/0 –/0 –/0
6" PTFE / PFA 2.0/0 * 3.5/0 5.6/0 –/0 –/0
8" PTFE / PFA 2.9/0 * 4.2/0 5.9/0 –/0 –/0
10" PTFE 4.8 * 5.8 7.7 – –
12" PTFE 5.8 * 7.3 9.1 – –
14" PTFE 6.8 * 8.7 10.6 – –
16" PTFE 7.8 * 9.7 11.6 – –
18" PTFE
Partial vacuum is impermissible!20" PTFE
24" PTFE
* No value can be quoted.

23. Proline Promag 55S
Endress+Hauser 23
Nominal diameter and
flow rate
The diameter of the pipe and the flow rate determine the nominal diameter of the sensor. The optimum flow
velocity is between 2 and 3 m/s (6 to 10 ft/s). The flow velocity (v), moreover, has to be matched to the phy-
sical properties of the fluid:
• v < 2 m/s (< 6 ft/s): for abrasive fluids where solids do not cause sedimentation (e.g. lime milk)
• v > 2 m/s (> 6 ft/s): for fluids producing build-up (e.g. wastewater sludge)
• v > 2 m/s (> 6 ft/s): for abrasive sludge with a high sand or stone content and where the solids easily cause
sedimentation (e.g. ore slurry)
! Note!
Flow velocity can be increased, if necessary, by reducing the nominal diameter of the sensor through the use
of adapters → ä 17.
Flow rate characteristic values - Promag S (SI units)
Nominal
diameter
Recommended flow rate Factory settings
[mm] min./max. full scale value
(v ≈ 0.3 or 10 m/s)
Full scale value
(v ≈ 2.5 m/s)
Pulse value
(≈ 2 pulse/s)
Low flow cut off
(v ≈ 0.04 m/s)
15 4 to 100 dm3
/min 25 dm3
/min 0.20 dm3
0.5 dm3
/min
25 9 to 300 dm3
/min 75 dm3
/min 0.50 dm3
1 dm3
/min
32 15 to 500 dm3/min 125 dm3/min 1.00 dm3 2 dm3/min
40 25 to 700 dm3
/min 200 dm3
/min 1.50 dm3
3 dm3
/min
50 35 to 1100 dm3
/min 300 dm3
/min 2.50 dm3
5 dm3
/min
65 60 to 2000 dm3/min 500 dm3/min 5.00 dm3 8 dm3/min
80 90 to 3000 dm3
/min 750 dm3
/min 5.00 dm3
12 dm3
/min
100 145 to 4700 dm3
/min 1200 dm3
/min 10.00 dm3
20 dm3
/min
125 220 to 7500 dm3/min 1850 dm3/min 15.00 dm3 30 dm3/min
150 20 to 600 m3
/h 150 m3
/h 0.025 m3
2.5 m3
/h
200 35 tof 1100 m3
/h 300 m3
/h 0.05 m3
5.0 m3
/h
250 55 to 1700 m3/h 500 m3/h 0.05 m3 7.5 m3/h
300 80 to 2400 m3
/h 750 m3
/h 0.10 m3
10 m3
/h
350 110 to 3300 m3
/h 1000 m3
/h 0.10 m3
15 m3
/h
400 140 to 4200 m3/h 1200 m3/h 0.15 m3 20 m3/h
450 180 to 5400 m3
/h 1500 m3
/h 0.25 m3
25 m3
/h
500 220 to 6600 m3
/h 2000 m3
/h 0.25 m3
30 m3
/h
600 310 to 9600 m3/h 2500 m3/h 0.30 m3 40 m3/h

24. Proline Promag 55S
24 Endress+Hauser
Pressure loss • No pressure loss if the sensor is installed in a pipe of the same nominal diameter.
• Pressure losses for configurations incorporating adapters according to DIN EN 545 → ä 17.
Flow rate characteristic values - Promag S (US units)
Nominal
diameter
Recommended flow rate Factory settings
[inch] min./max. full scale value
(v ≈ 1.0 or 33 ft/s)
Full scale value
(v ≈ 8.2 ft/s)
Pulse value
(≈ 2 pulse/s)
Low flow cut off
(v ≈ 0.1 ft/s)
½" 1.0 to 27 gal/min 6 gal/min 0.05 gal 0.10 gal/min
1" 2.5 to 80 gal/min 18 gal/min 0.20 gal 0.25 gal/min
1¼" 4 to 130 gal/min 30 gal/min 0.20 gal 0.50 gal/min
1½" 7 to 190 gal/min 50 gal/min 0.50 gal 0.75 gal/min
2" 10 to 300 gal/min 75 gal/min 0.50 gal 1.25 gal/min
2½" 16 to 500 gal/min 130 gal/min 1 gal 2.0 gal/min
3" 24 to 800 gal/min 200 gal/min 2 gal 2.5 gal/min
4" 40 to 1250 gal/min 300 gal/min 2 gal 4.0 gal/min
5" 60 to 1950 gal/min 450 gal/min 5 gal 7.0 gal/min
6" 90 to 2650 gal/min 600 gal/min 5 gal 12 gal/min
8" 155 to 4850 gal/min 1200 gal/min 10 gal 15 gal/min
10" 250 to 7500 gal/min 1500 gal/min 15 gal 30 gal/min
12" 350 to 10600 gal/min 2400 gal/min 25 gal 45 gal/min
14" 500 to 15000 gal/min 3600 gal/min 30 gal 60 gal/min
16" 600 to 19000 gal/min 4800 gal/min 50 gal 60 gal/min
18" 800 to 24000 gal/min 6000 gal/min 50 gal 90 gal/min
20" 1000 to 30000 gal/min 7500 gal/min 75 gal 120 gal/min
24" 1400 to 44 000 gal/min 10500 gal/min 100 gal 180 gal/min

25. Proline Promag 55S
Endress+Hauser 25
Measuring tube specifications
Measuring tube specifications - Promag S (SI units)
Nominal
diameter
Pressure rating Inside diameter of measuring tube
[mm] [inch]
EN (DIN)
[bar]
AS 2129 AS 4087 ANSI
[lbs]
JIS with PFA
[mm]
with PTFE
[mm]
PU1)
[mm]
HR1)
[mm]
15 ½" PN 40 – – Cl 150 20K – 15 – –
25 1" PN 40 Table E – Cl 150 20K 23 26 24 –
32 – PN 40 – – – 20K 32 35 32 –
40 1½" PN 40 – – Cl 150 20K 36 41 38 –
50 2" PN 40 Table E Cl.14 Cl 150 10K 48 52 50 –
65 – PN 16 – – – 10K 63 67 66 66
80 3" PN 16 – – Cl 150 10K 75 80 79 79
100 4" PN 16 – – Cl 150 10K 101 104 102 102
125 – PN 16 – – – 10K 126 129 127 127
150 6" PN 16 – – Cl 150 10K 154 156 156 156
200 8" PN 10 – – Cl 150 10K 201 202 204 204
250 10" PN 10 – – Cl 150 10K – 256 258 258
300 12" PN 10 – – Cl 150 10K – 306 309 309
350 14" PN 10 – – Cl 150 – – 337 342 342
400 16" PN 10 – – Cl 150 – – 387 392 392
450 18" PN 10 – – Cl 150 – – 432 437 437
500 20" PN 10 – – Cl 150 – – 487 492 492
600 24" PN 10 – – Cl 150 – – 593 594 594
1)
Abbreviations (lining): PU = Polyurethane, HR = Hard rubber

26. Proline Promag 55S
26 Endress+Hauser
Measuring tube specifications - Promag S (US units)
Nominal
diameter
Pressure rating Inside diameter of measuring tube
[inch] [mm]
EN (DIN)
[bar]
AS 2129 AS 4087 ANSI
[lbs]
JIS with PFA
[inch]
with PTFE
[inch]
PU1)
[inch]
HR1)
[inch]
½" 15 PN 40 – – Cl 150 20K – 0.59 – –
1" 25 PN 40 Table E – Cl 150 20K 0.91 1.02 0.94 –
– 32 PN 40 – – – 20K 1.26 1.34 1.26 –
1½" 40 PN 40 – – Cl 150 20K 1.42 1.61 1.50 –
2" 50 PN 40 Table E Cl.14 Cl 150 10K 1.89 2.05 1.97 –
– 65 PN 16 – – – 10K 2.48 2.64 2.60 2.60
3" 80 PN 16 – – Cl 150 10K 2.95 3.15 3.11 3.11
4" 100 PN 16 – – Cl 150 10K 3.98 4.09 4.02 4.02
– 125 PN 16 – – – 10K 4.96 5.08 5.00 5.00
6" 150 PN 16 – – Cl 150 10K 6.06 6.14 6.14 6.14
8" 200 PN 10 – – Cl 150 10K 7.91 7.92 8.03 8.03
10" 250 PN 10 – – Cl 150 10K – 10.08 10.16 10.16
12" 300 PN 10 – – Cl 150 10K – 12.05 12.17 12.17
14" 350 PN 10 – – Cl 150 – – 13.27 13.46 13.46
16" 400 PN 10 – – Cl 150 – – 15.24 15.43 15.43
18" 450 PN 10 – – Cl 150 – – 17.01 17.20 17.20
20" 500 PN 10 – – Cl 150 – – 19.17 19.37 19.37
24" 600 PN 10 – – Cl 150 – – 23.35 23.39 23.39
1) Abbreviations (lining): PU = Polyurethane, HR = Hard rubber

27. Proline Promag 55S
Endress+Hauser 27
Nominal diameter
Inside diameter of
measuring tube with natural rubber
Thickness of lining material
natural rubber
[inch] [mm] [inch] [mm] [inch] [mm]
2½" 65
PN16/150lbs
2.05 52 0.39 10
3" 80 2.56 65 0.39 10
4" 100 3.58 91 0.39 10
5" 125 4.57 116 0.39 10
6" 150 5.59 142 0.47 12
8" 200 6.30 190 0.47 12
10" 250
PN10
9.61 244 0.47 12
12" 300 11.50 292 0.51 13
14" 350 12.68 322 0.55 14
16" 400 14.53 369 0.63 16
18" 450 16.42 417 0.55 14
20" 500 18.35 466 0.67 17
24" 600 22.13 562 0.79 20
10" 250
150lbs
9.57 243 0.47 12
12" 300 11.46 291 0.47 12
14" 350 12.60 320 0.51 13
16" 400 14.49 368 0.55 14
18" 450 16.42 417 0.55 14
20" 500 18.31 465 0.63 16
24" 600 22.17 563 0.63 16

28. Proline Promag 55S
28 Endress+Hauser
Mechanical construction
Design, dimensions Transmitter wall-mount housing (non hazardous area and II3G / zone 2)
A0001150
Dimensions (SI units)
Dimensions (US units)
A B C D E F G H J K L M N O P Q R
215 250 90.5 159.5 135 90 45 > 50 81 53 95 53 102 81.5 11.5 192 8 × M5
All dimensions in [mm]
A B C D E F G H J K L M N O P Q R
8.46 9.84 3.56 6.28 5.32 3.54 1.77 > 1.97 3.19 2.09 3.74 2.09 4.02 3.21 0.45 7.56 8 × M5
All dimensions in [inch]
Esc
E- +
DC
B
A
F
E
G
KJ
Q
NL
O
R
H J
M
P P
SS
T

29. Proline Promag 55S
Endress+Hauser 29
There is a separate mounting kit for the wall-mounted housing. It can be ordered from Endress+Hauser as an
accessory. The following installation variants are possible:
• Panel-mounted installation
• Pipe mounting
Installation in control panel
A0001131
Pipe mounting
A0001132
245 (9.65)
~110 (~4.33)
210 (8.27)
+0.5 (+0.019)
–0.5 (–0.019)
+0.5 (+0.019)
–0.5 (–0.019)
mm (inch)
Ø 20…70
(Ø 0.79…2.75)
~ ~ 6.1)155 (
mm (inch)

30. Proline Promag 55S
30 Endress+Hauser
Sensor, remote version DN ≤ 300 (12")
A0012462
Dimensions (SI units)
DN A B C D E F G H J L
EN (DIN) / JIS / AS1)
15
129 163 143 102
286 202 84 120 94 200
25 286 202 84 120 94 200
32 286 202 84 120 94 200
40 286 202 84 120 94 200
50 286 202 84 120 94 200
65 336 227 109 180 94 200
80 336 227 109 180 94 200
100 336 227 109 180 94 250
125 417 267 150 260 140 250
150 417 267 150 260 140 300
200 472 292 180 324 156 350
250 522 317 205 400 156 450
300 572 342 230 460 166 500
The fitting length (L) is always the same, regardless of the pressure rating.
1) Only DN 25 and DN 50 are available for flanges according to AS.
All dimensions in [mm]
J
L
E
GF
H
B
C
A
D

31. Proline Promag 55S
Endress+Hauser 31
Dimensions (US units)
High temperature version DN ≤ 300 (12")
A0005570
Measurement D1, E1 = Measurement D, E of the standard remote version plus 110 mm (4.33")
DN A B C D E F G H J L
ANSI
½"
5.08 6.42 5.63 4.02
11.3 7.95 3.31 4.72 3.70 7.87
1" 11.3 7.95 3.31 4.72 3.70 7.87
1½" 11.3 7.95 3.31 4.72 3.70 7.87
2" 11.3 7.95 3.31 4.72 3.70 7.87
3" 13.2 8.94 4.29 7.09 3.70 7.87
4" 13.2 8.94 4.29 7.09 3.70 9.84
6" 16.4 10.5 5.91 10.2 5.51 11.8
8" 18.6 11.5 7.08 12.8 6.14 13.8
10" 20.6 12.5 8.07 15.8 6.14 17.7
12" 22.5 13.5 9.06 18.1 6.54 19.7
The fitting length (L) is always the same, regardless of the pressure rating.
All dimensions in [inch]
E1
D1
110
(4.33)
mm (inch)

32. Proline Promag 55S
32 Endress+Hauser
Sensor, remote version DN ≥ 300 (12")
A0003220
Dimensions (SI units)
Dimensions (US units)
DN A B C D E F G H J L
EN (DIN)
350
129 163 143 102
683.5 401.5 282.0 564 276 550
400 735.5 427.5 308.0 616 276 600
450 785.5 452.5 333.0 666 292 650
500 836.5 478.0 358.5 717 292 650
600 940.5 530.0 410.5 821 402 780
The fitting length (L) is always the same, regardless of the pressure rating.
All dimensions in [mm]
DN A B C D E F G H J L
ANSI
14"
5.08 6.42 5.63 4.02
26.9 15.8 11.1 22.2 10.9 21.7
16" 29.0 16.8 12.1 24.3 10.9 23.6
18" 30.9 17.8 13.1 26.2 11.5 25.6
20" 32.9 18.8 14.1 28.2 11.5 25.6
24" 37.0 20.9 16.2 32.3 15.8 30.7
The fitting length (L) is always the same, regardless of the pressure rating.
All dimensions in [inch]
H
E
GF
L
J
A B
C
D

33. Proline Promag 55S
Endress+Hauser 33
Compact version DN ≤ 300 (12")
A0005423
Dimensions (SI units)
DN A A* B C D E F G H K L
EN (DIN) / JIS / AS1)
15
227 207 187 168 160
341 257 84 94 120 200
25 341 257 84 94 120 200
32 341 257 84 94 120 200
40 341 257 84 94 120 200
50 341 257 84 94 120 200
65 391 282 109 94 180 200
80 391 282 109 94 180 200
100 391 282 109 94 180 250
125 472 322 150 140 260 250
150 472 322 150 140 260 300
200 527 347 180 156 324 350
250 577 372 205 156 400 450
300 627 397 230 166 460 500
The fitting length (L) is always the same, regardless of the pressure rating.
1)
Only DN 25 and DN 50 are available for flanges according to AS.
All dimensions in [mm]
Esc
E- +
K
H
L
E
GF
A*
A B
C
D

34. Proline Promag 55S
34 Endress+Hauser
Dimensions (US units)
High temperature version DN ≤ 300 (12")
A0005529
Measurement D1, E1 = Measurement D, E of the standard compact version plus 110 mm (4.33")
DN A A* B C D E F G H K L
ANSI
½"
8.94 8.15 7.36 6.61 6.30
13.4 10.1 3.31 3.70 4.72 7.87
1" 13.4 10.1 3.31 3.70 4.72 7.87
1½" 13.4 10.1 3.31 3.70 4.72 7.87
2" 13.4 10.1 3.31 3.70 4.72 7.87
3" 15.4 11.1 4.29 3.70 7.09 7.87
4" 15.4 11.1 4.29 3.70 7.09 9.84
6" 18.6 12.7 5.91 5.51 10.2 11.8
8" 20.8 13.7 7.09 6.14 12.8 13.8
10" 22.7 14.7 8.07 6.14 15.8 17.7
12" 24.7 15.6 9.06 6.54 18.1 19.7
The fitting length (L) is always the same, regardless of the pressure rating.
All dimensions in [inch]
E1
D1
110
(4.33)
mm (inch)

35. Proline Promag 55S
Endress+Hauser 35
Compact version DN ≥ 300 (12")
A0005424
Dimensions (SI units)
Dimensions (US units)
DN A A* B C D E F G H J L
EN (DIN)
350
227 207 187 168 160
738.5 456.5 282.0 564 276 550
400 790.5 482.5 308.0 616 276 600
450 840.5 507.5 333.0 666 292 650
500 891.5 533.0 358.5 717 292 650
600 995.5 585.0 410.5 821 402 780
The fitting length (L) is always the same, regardless of the pressure rating.
All dimensions in [mm]
DN A A* B C D E F G H J L
ANSI
14"
8.94 8.15 7.36 6.61 6.30
29.1 18.0 11.1 22.2 10.9 21.7
16" 31.1 19.0 12.1 24.3 10.9 23.6
18" 33.1 20.0 13.1 26.2 11.5 25.6
20" 35.1 21.0 14.1 28.2 11.5 25.6
24" 39.2 23.0 16.2 32.3 15.8 30.7
The fitting length (L) is always the same, regardless of the pressure rating.
All dimensions in [inch]
L
J
E
GF
H
Esc
E- +
A B
A* C
D

36. Proline Promag 55S
36 Endress+Hauser
Ground disk for flange connections
A0003221
Dimensions (SI units)
DN1)
A B C D E t
EN (DIN) / JIS / AS4)
PTFE, PFA, PU, HR5)
NR5)
15 16 – 43 61.5 73
6.5
2
25 26 – 62 77.5 87.5
32 35 – 80 87.5 94.5
40 41 – 82 101 103
50 52 – 101 115.5 108
65 68 53 121 131.5 118
80 80 66 131 154.5 135
100 104 91.5 156 186.5 153
125 130 117 187 206.5 160
150 158 143.5 217 256 184
200 206 192 267 288 205
250 260 245 328 359 240
3002)
312 294.5 375 413 273
3003) 310 – 375 404 268
3502)
343 323.5 433 479 365
9.0
4002)
393 371 480 542 395
4502) 439 420 538 583 417
5002)
493 469 592 650 460
6002)
593 566 693 766 522
1) Ground disks at DN 15 to 250 can be used for all flange standards/nominal pressures available as standard.
2)
PN 10/16, Cl 150
3)
PN 25, JIS 10K/20K
4) Only DN 25 and DN 50 are available for flanges according to AS.
5)
Abbreviations (lining): PU = Polyurethane, HR = Hard rubber, NR = Natural rubber
All dimensions in [mm]
D
D
Ø B
Ø B
Ø
A
Ø C Ø C
Ø
A
DN 300 (12")≤ DN 350 (14")≥
Ø E Ø E
t t

37. Proline Promag 55S
Endress+Hauser 37
Dimensions (US units)
DN1)
A B C D E t
ANSI PTFE, PFA, PU, HR2) NR2)
½" 0.63 – 1.69 2.42 2.87
0.26
0.08
1" 1.02 – 2.44 3.05 3.44
1½" 1.61 – 3.23 3.98 4.06
2" 2.05 – 3.98 4.55 4.25
3" 3.15 2.60 5.16 6.08 5.31
4" 4.09 3.60 6.14 7.34 6.02
6" 6.22 5.65 8.54 10.08 7.24
8" 8.11 7.56 10.5 11.3 8.07
10" 10.2 9.65 12.9 14.1 9.45
12" 12.3 11.6 14.8 16.3 10.8
14" 13.5 12.7 17.1 18.9 14.4
0.35
16" 15.45 14.6 18.9 21.3 15.6
18" 17.3 16.5 21.2 23.0 16.4
20" 19.4 18.5 23.3 25.6 18.1
24" 23.4 22.3 27.3 30.1 20.6
1) Ground disks can be used for all pressure ratings.
2)
Abbreviations (lining): PU = Polyurethane, HR = Hard rubber, NR = Natural rubber
All dimensions in [inch]

38. Proline Promag 55S
38 Endress+Hauser
Weight Weight in [kg]
Nominal
diameter
Compact version Remote version (without cable)
Sensor Transmitter
[mm] [inch] EN (DIN) / AS* JIS ANSI EN (DIN) / AS* JIS ANSI (Wall-mount housing)
15 ½"
PN40
6.5
10K
6.5
Class150
6.5
PN40
4.5
10K
4.5
Class150
4.5
6.0
25 1" 7.3 7.3 7.3 5.3 5.3 5.3
32 – 8.0 7.3 – 6.0 5.3 –
40 1½" 9.4 8.3 9.4 7.4 6.3 7.4
50 2" 10.6 9.3 10.6 8.6 7.3 8.6
65 –
PN16
12.0 11.1 –
PN16
10.0 9.1 –
80 3" 14.0 12.5 14.0 12.0 10.5 12.0
100 4" 16.0 14.7 16.0 14.0 12.7 14.0
125 – 21.5 21.0 – 19.5 19.0 –
150 6" 25.5 24.5 25.5 23.5 22.5 23.5
200 8"
PN10
45 41.9 45
PN10
43 39.9 43
250 10" 65 69.4 75 63 67.4 73
300 12" 70 72.3 110 68 70.3 108
350 14" 115 175 113 173
400 16" 135 205 133 203
450 18" 175 255 173 253
500 20" 175 285 173 283
600 24" 235 405 233 403
Transmitter (Compact version): 3.4 kg
High temperature version: +1.5 kg
(Weight data valid for standard pressure ratings and without packaging material)
* Only DN 25 and DN 50 are available for flanges according to AS.

39. Proline Promag 55S
Endress+Hauser 39
Weight in [lbs]
Nominal
diameter
Compact version Remote version (without cable)
Sensor Transmitter
[mm] [inch] EN (DIN) / AS* JIS ANSI EN (DIN) / AS* JIS ANSI (Wall-mount housing)
15 ½"
PN40
14
10K
14
Class150
14
PN40
10
10K
10
Class150
10
13
25 1" 16 16 16 12 12 12
32 – 18 16 – 13 12 –
40 1½" 21 18 21 16 14 16
50 2" 23 21 23 19 16 19
65 –
PN16
26 24 –
PN16
22 20 –
80 3" 31 28 31 26 23 26
100 4" 35 32 35 31 28 31
125 – 47 46 – 43 42 –
150 6" 56 54 56 52 50 52
200 8"
PN10
99 92 99
PN10
95 88 95
250 10" 143 153 165 139 149 161
300 12" 154 159 243 150 155 238
350 14" 254 386 249 381
400 16" 298 452 293 448
450 18" 386 562 381 558
500 20" 386 628 381 624
600 24" 518 893 514 889
Transmitter (Compact version): 3.4 kg
High temperature version: +1.5 kg
(Weight data valid for standard pressure ratings and without packaging material)
* Only DN 25 and DN 50 are available for flanges according to AS.

40. Proline Promag 55S
40 Endress+Hauser
Materials Transmitter housing:
• Compact and remote version: Powder-coated die-cast aluminum
Sensor housing:
• DN 15 to 300 (½ to 12"): Powder-coated die-cast aluminum
• DN 350 to 600 (14 to 24"): Painted steel
Measuring tube:
• DN < 350 (14"): Stainless steel 1.4301 (SS 304) or 1.4306/304L. For flanges of carbon steel with Al/Zn
protective coating.
• DN > 300 (12"): Stainless steel 1.4301/304. For flanges of carbon steel with protective paint finish.
Flange:
• EN 1092-1 (DIN 2501): 316L / 1.4571 (SS 316Ti); RSt37-2 (S235JRG2) / C22 / FE 410W B
(DN < 350 (14"): with Al/Zn protective coating; DN > 300 (12") with protective paint finish)
• ANSI: A105; F316L
(DN < 350 (14") with Al/Zn protective coating; DN > 300 (12") with protective paint finish)
• JIS: RSt37-2 (S235JRG2) / HII / 1.0425 / 316L
(DN < 350 (14") with Al/Zn protective coating; DN > 300 (12") with protective paint finish)
• AS 2129:
– DN 25 (1"): A105 or RSt37-2 (S235JRG2), with Al/Zn protective coating
– DN 50 (2"): A105 or St44-2 (S275JR), with Al/Zn protective coating
• AS 4087:
– DN 50 (2"): A105 or St44-2 (S275JR), with Al/Zn protective coating
Ground disks: 1.4435/316L or Alloy C-22
Electrodes:
• 1.4435, platinum, Alloy C-22, tantalum, titanium Gr. 2, tungsten carbide coating (for electrodes made from
1.4435)
• 1.4310/302 (for brush electrodes), Duplex 1.4462, Alloy X750 (for brush electrodes)
Seals: according to DIN EN 1514-1
Material load diagrams Caution!
The following diagrams contain material load curves (reference curves) for various process connections relating
to the fluid temperature. But the maximal permissible fluid temperature always depends on the lining material
of the sensor and/or the sealing material.
Flange connection to EN 1092-1 (DIN 2501)
Flange material: RSt37-2 (S235JRG2) / C22 / Fe 410W B
A0005594
PN25
PN16
PN10
PN 6
PN40
0
5
10
15
20
25
35
30
40
[bar][psi]
-60 -40 -20 0 20 40 60 80 100 120 140 160 180 [°C]
360 [°F]0-40 100 200 300
200
100
400
300
500
600
0

41. Proline Promag 55S
Endress+Hauser 41
Flange connection to EN 1092-1 (DIN 2501)
Flange material: 316L / 1.4571
A0005304
Flange connection to ANSI B16.5
Flange material: A105
A0003226
Flange connection to ANSI B16.5
Flange material: F316L
A0005307
PN25
PN16
PN10
PN40
PN 6
0
5
10
15
20
25
35
30
40
[bar][psi]
-60 -40 -20 0 20 40 60 80 100 120 140 160 180 [°C]
360 [°F]0-40 100 200 300
200
100
400
300
500
600
0
Class300
Class150
0
10
20
30
40
50
[bar][psi]
-40 -20 0 20 40 60 80 100 120 140 160 180 [°C]
360 [°F]0-40 100 200 300
200
100
400
300
500
600
700
800
900
0
60
Class300
Class150
0
10
20
30
40
50
[bar][psi]
-40 -20 0 20 40 60 80 100 120 140 160 180 [°C]
360 [°F]0-40 100 200 300
200
100
400
300
500
600
700
800
900
0
60

42. Proline Promag 55S
42 Endress+Hauser
Flange connection to JIS B2220
Flange material: RSt37-2 (S235JRG2) / H II / 1.0425
A0003228
Flange connection to AS 2129 Table E or AS 4087 Cl. 14
Flange material: A105 / RSt37-2 (S235JRG2) / St44-2 (S275JR)
A0005595
Fitted electrodes Comes as standard:
• 2 measuring electrodes for signal detection
• 1 EPD electrode for empty pipe detection
• 1 Reference electrode for potential equalization
Optionally available for measuring electrodes made of platinum:
• 1 EPD electrode for empty pipe detection
• 1 Reference electrode for potential equalization
For measuring tube with natural rubber lining in combination with brush electrodes:
• 2 brush electrodes for signal detection
Process connections Flange connection:
• EN 1092-1 (DIN 2501)
– DN < 300 (12"): Form A
– DN > 300 (12"): Form B
– DN 65 (2½") PN 16 and DN 600 (24") PN 16 exclusively according to EN 1092-1
• ANSI
• JIS
• AS
Surface roughness • Lining with PFA: ≤ 0.4 μm (16 μin)
• Electrodes: 0.3 to 0.5 μm (12 to 20 μin)
All data relate to wetted parts.
10K
20K
-40 -20 0 20 40 60 80 100 120 140 160 180 [°C]
0
10
20
30
[bar]
360 [°F]0-40 100 200 300
[psi]
200
100
400
300
0
-40 -20 0 20 40 60 80 100 120 140 160 [°C]
0
10
5
20
15
[bar]
0-40 100 200 300 [°F]
[psi]
200
100
300
0

43. Proline Promag 55S
Endress+Hauser 43
Human interface
Display elements • Liquid-crystal display: illuminated, four lines with 16 characters per line
• Custom configurations for presenting different measured values and status variables
• 3 totalizers
• At ambient temperatures below –20 °C (–4 °F), the readability of the display may be impaired.
Operating elements • Onsite operation with three optical sensor keys (S/O/F)
• Application-specific Quick Setup menus for straightforward commissioning
Language groups Language groups available for operation in different countries:
• Western Europe and America (WEA):
English, German, Spanish, Italian, French, Dutch, Portuguese
• Eastern Europe/Scandinavia (EES):
English, Russian, Polish, Norwegian, Finnish, Swedish, Czech
• South and East Asia (SEA):
English, Japanese, Indonesian
• China (CN):
English, Chinese
! Note!
You can change the language group via the operating program "FieldCare".
Language groups via HART protocol

44. Proline Promag 55S
44 Endress+Hauser
Certificates and approvals
CE mark The measuring system described in these Operating Instructions therefore complies with the legal requirements
of the EU Directives. Endress+Hauser confirms this by affixing the CE mark to it and by issuing the CE
declaration of conformity.
C-tick mark The measuring system meets the EMC requirements of the "Australian Communications and Media Authority
(ACMA)".
Ex certification Information on the currently available Ex-rated versions (ATEX, FM, CSA etc.) is available on request from your
Endress+Hauser sales outlet. All information relevant to explosion protection is available in separate documents
that you can order as necessary.
Sanitary compatibility No applicable approvals or certification
Pressure measuring device
approval
All measuring devices, including those with a nominal diameter smaller than or equal to DN 25, correspond
to Article 3(3) of the EC Directive 97/23/EC (Pressure Equipment Directive) and have been designed and
manufactured according to good engineering practice. For nominal diameters greater than DN 25 (depending
on the fluid and process pressure), there are additional optional approvals according to category II/III.
FOUNDATION Fieldbus
certification
The flow device has successfully passed all the test procedures carried out and is certified and registered by the
Fieldbus Foundation. The device thus meets all the requirements of the following specifications:
• Certified to FOUNDATION Fieldbus Specification
• The device meets all the specifications of the FOUNDATION Fieldbus H1
• Interoperability Test Kit (ITK), revision status 5.0 (device certification number: on request)
• The device can also be operated with certified devices of other manufacturers
• Physical Layer Conformance Test of the Fieldbus Foundation
PROFIBUS PA
certification
The flowmeter has successfully passed all the test procedures carried out and is certified and registered by the
PNO (PROFIBUS User Organization). The device thus meets all the requirements of the following
specifications:
• Certified in accordance with PROFIBUS Profile Version 3.0 (device certification number: available on
request)
• The measuring device can also be operated with certified devices of other manufacturers (interoperability)
Other standards, guidelines • EN 60529
Degrees of protection by housing (IP code)
• EN 61010-1
Protection Measures for Electrical Equipment for Measurement, Control,
Regulation and Laboratory Procedures
• IEC/EN 61326
"Emission in accordance with requirements for class A".
Electromagnetic compatibility (EMC requirements).
• ANSI/ISA-S82.01
Safety Standard for Electrical and Electronic Test, Measuring, Controlling and
related Equipment - General Requirements. Pollution degree 2, Installation Category II.
• CAN/CSA-C22.2 (No. 1010.1-92)
Safety requirements for Electrical Equipment for Measurement and Control and Laboratory Use.
Pollution degree 2, Installation Category I.
• NAMUR NE 21
Electromagnetic compatibility (EMC) of industrial process and laboratory control equipment.
• NAMUR NE 43
Standardization of the signal level for the breakdown information of digital transmitters with analog output
signal.
• NAMUR NE 53
Software of field devices and signal-processing devices with digital electronics.

45. Proline Promag 55S
Endress+Hauser 45
Accessories
Various accessories are available for the transmitter and the sensor. These can be ordered separately from
Endress+Hauser.
! Note!
For detailed information on specific order codes, please contact the Endress+Hauser service organization.
Supplementary documentation
• Flow Measurement (FA005D/06/en)
• Operating Instructions Promag 55 (BA119D/06/en, BA120D/06/en)
• Operating Instructions Promag 55 PROFIBUS PA (BA124D/06/en, BA125D/06/en)
• Operating Instructions Promag 53 FOUNDATION Fieldbus (BA126D/06/en, BA127D/06/en)
• Supplementary documentation on Ex-ratings: ATEX, FM, CSA
Ordering information
! Note!
Endress+Hauser reserves the right to change or modify product, specifications, and ordering information at any
time without notice. Please consult Endress+Hauser or your local representative for the most recent
information.

46. Proline Promag 55S
46 Endress+Hauser
Registered trademarks
HART®
Registered trademark of HART Communication Foundation, Austin, USA
PROFIBUS®
Registered trademark of the PROFIBUS User Organisation, Karlsruhe, Germany
FOUNDATIONTM Fieldbus
Registered trademark of the Fieldbus Foundation, Austin, USA
HistoROM™, S-DAT®
, T-DAT®
, F-CHIP®
, FieldCare®
, Fieldcheck®
, Applicator®
Registered or registration-pending trademarks of Endress+Hauser Flowtec AG, Reinach, CH

47. Proline Promag 55S
Endress+Hauser 47

48. Instruments International
Endress+Hauser
Instruments International AG
Kaegenstrasse 2
4153 Reinach
Switzerland
Tel. +41 61 715 81 00
Fax +41 61 715 25 00
www.endress.com
info@ii.endress.com
TI071D/06/en/10.09
71104953
FM+SGML6.0/ProMoDo